Bah it isn't stupid, its a line from "Finding Forrester" where Sean Connery says "YOU'RE THE MAN NOW DOG" to the black kid
Anyways, the nazi thing was started with the secret nazi forest which I posted here a week or so ago. Since then, a new fad has started involving finding swastikas in games, or photoshopping them into pictures with fake news articles. Then there will be a flashing grey and white image of Hitler, or another character from say a video game if thats where the swastika was put in. Its a fad. If you want to learn more, go to en.wikipedia.org and look up YTMND.